Use local mirror for ubuntu-minimal jobs

This adds "openstack-ci-mirrors" element which performs various
settings to get builds using local mirrors.  As a first step, we
convert ubuntu-minimal jobs

The main trick is that since infra mirrors are created with rerepo
they are not signed (they are recreated, not cloned, and not signing
is seen as a feature in that it deters external use).  So we need to
instruct debootstrap to ignore signing and also turn it off for
in-chroot apt.  Other than that, the existing DIB_DISTRIBUTION_MIRROR
works to redirect installs.

Remove "restricted" as it's not mirrored, and I don't think we want it
in here by default.

(I think DIB_DISTRIBUTION_MIRROR is a bit of an anti-pattern, because
it leaves the mirrors in the final image -- just because you use them
to build, doesn't mean you want them at runtime).  But we don't need
to fix that now, and we don't use any created images.)

This pauses fedora testing until the next change, which moves to using
local mirrors for testing on fedora/centos

Change-Id: I778bd05a1e615c27edf1c9f0a1409119a6b3a850

diskimage_builder/elements/apt-sources/test-elements/test-sources/element-deps

@@ -1,2 +1,3 @@
 base
+openstack-ci-mirrors
 ubuntu-minimal

diskimage_builder/elements/openstack-ci-mirrors/README.rst

@@ -0,0 +1,8 @@
+====================
+openstack-ci-mirrors
+====================
+
+This element contains various settings to setup mirrors for openstack
+ci gate testing in a generic fashion.  It is intended to be used as a
+dependency of testing elements that run in the gate.  It should do
+nothing outside that environment.

diskimage_builder/elements/openstack-ci-mirrors/environment.d/11-dib-distribution-mirror.bash

@@ -0,0 +1,26 @@
+# Set DIB_DISTRIBUTION_MIRROR if running in openstack gate
+if [ -f /etc/ci/mirror_info.sh ]; then
+
+    # don't spam logs with this source
+    _xtrace=$(set +o | grep xtrace)
+    set +o xtrace
+    source /etc/ci/mirror_info.sh
+    $_xtrace
+
+    # note 11- is after 10- which is where DISTRO_NAME is set usually
+
+    if [[ "${DISTRO_NAME}" == "ubuntu" ]]; then
+        export DIB_DISTRIBUTION_MIRROR=$NODEPOOL_UBUNTU_MIRROR
+        export DIB_DEBOOTSTRAP_EXTRA_ARGS+=" --no-check-gpg"
+    elif [[ "${DISTRO_NAME}" == "debian" ]]; then
+        export DIB_DISTRIBUTION_MIRROR=$NODEPOOL_DEBIAN_MIRROR
+        export DIB_DEBOOTSTRAP_EXTRA_ARGS+=" --no-check-gpg"
+    elif [[ "${DISTRO_NAME}" == "fedora" ]]; then
+        export DIB_DISTRIBUTION_MIRROR=$NODEPOOL_FEDORA_MIRROR
+    elif [[ "${DISTRO_NAME}" == "centos" ]]; then
+        export DIB_DISTRIBUTION_MIRROR=$NODEPOOL_CENTOS_MIRROR
+    elif [[ "${DISTRO_NAME}" == "centos7" ]]; then
+        export DIB_DISTRIBUTION_MIRROR=$NODEPOOL_CENTOS_MIRROR
+    fi
+
+fi

diskimage_builder/elements/openstack-ci-mirrors/root.d/10-apt-disable-gpg

@@ -0,0 +1,37 @@
+#!/bin/bash
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+# dib-lint: disable=safe_sudo
+
+if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
+    set -x
+fi
+set -eu
+set -o pipefail
+
+# Disable gpg signing for apt openstack ci repos are created by reprepro
+# and not signed.
+
+# This has to be after debootstrap, but before anything else tries to
+# use the mirror.
+
+APT_DIR=${TARGET_ROOT}/etc/apt/apt.conf.d
+
+if [ -d ${APT_DIR} ]; then
+    FILE=${APT_DIR}/99unauthenticated
+    sudo dd of=${FILE} <<EOF
+APT::Get::AllowUnauthenticated "true";
+EOF
+    sudo chmod 0644 ${FILE}
+fi

diskimage_builder/elements/pip-and-virtualenv/test-elements/source-install-ubuntu/element-deps

@@ -1 +1,2 @@
+openstack-ci-mirrors
 ubuntu-minimal

diskimage_builder/elements/ubuntu-minimal/environment.d/10-ubuntu-distro-name.bash

@@ -1,6 +1,6 @@
 export DISTRO_NAME=ubuntu
 export DIB_RELEASE=${DIB_RELEASE:-xenial}
-export DIB_DEBIAN_COMPONENTS=${DIB_DEBIAN_COMPONENTS:-main,restricted,universe}
+export DIB_DEBIAN_COMPONENTS=${DIB_DEBIAN_COMPONENTS:-main,universe}
 
 if [ -n "${DIB_UBUNTU_DISTRIBUTION_MIRROR:-}" ]; then
     DIB_DISTRIBUTION_MIRROR=$DIB_UBUNTU_DISTRIBUTION_MIRROR

diskimage_builder/elements/ubuntu-minimal/test-elements/trusty-build-succeeds/element-deps

@@ -0,0 +1 @@
+openstack-ci-mirrors

diskimage_builder/elements/ubuntu-minimal/test-elements/xenial-build-succeeds/element-deps

@@ -1 +1,2 @@
+openstack-ci-mirrors
 vm

tests/run_functests.sh

@@ -42,6 +42,10 @@ DEFAULT_SKIP_TESTS=(
     debian-minimal/stable-build-succeeds
     debian-minimal/stable-vm
     debian/build-succeeds
+    # temporary disable until change to use mirrors
+    pip-and-virtualenv/source-install-fedora
+    ironic-agent/build-succeeds-fedora
+    fedora-minimal/build-succeeds
 )
 
 # The default output formats (specified to disk-image-create's "-t"